Woad dye was considered “true blue” — it produced the most colorfast blues in Europe. But it could not compete with indigo, a truer-blue dye made from several species of the Indigofera genus ...

Thousands of Velella velella species have invaded La Pelosa beach in Stintino, transforming the splendid shoreline into a characteristic expanse of blue. Like every year, the mistral winds carry ...

Supporters are convinced that in a hilarious bid to eradicate the colour red - worn by Everton's biggest rivals Liverpool - the club has dyed ketchup blue. However, the club have confirmed that ...